WWDC 2015 kicked off yesterday (8 June) and Apple has announced Apple Music, it's music streaming service alongside iOS 9, OS X El Capitan and WatchOS 2. Here's all you need to know. WWDC announcements: here's everything that Apple announced at its WWDC 2015 keynote including Apple Music, iOS 9, OS X El Capitan and WatchOS 2. WWDC, or the Worldwide Developers' Conference, is a highlight of Apple's yearly calendar. It's a ...